Thread-stand.



5,. W. DARLEY, JR.

THREAD STAND.

APPLIOATION FILED MARrZB, 1910.

Patented Jan. 26, 1915.

THE NORRIS PETERS C0. PfldTD-LITHQ, WASHINGTON, D C.

JOHN W. DARLEY, JR., 013 BALTIMORE, MARYLAND.

THREAD-STAND.

Specification of Letters Patent.

Patented J an. 26, 1915..

Application filed March 23, 1910. Serial No. 551,110.

To all whom it may concern:

Be it known that 1, JOHN W. DARLEY, J r., a citizen of the UnitedStates, residing at Baltimore, in the State of Maryland, have inventedcertain new and useful Improvements in Thread-gtands; and I do herebydeclare the following to be a full, clear, and exact description of theinvention, such as will enable others skilled in the art to which itappertains to make and use the same.

My invention relates to improvements in thread stands, and the object ofmy invention is to provide a simple and effective device of thischaracter, adapted to hold a spool of thread so that the thread may befreely fed, and to prevent it from overrunning and tangling, if a suddenpull or jerk is given to the thread.

This invention may be used in connection with any form of a sewingmachine, or in fact, with any machine in which it is desired to feed acord or wire from a spool.

With the objects stated in view, my invention consists in theconstruction and combinations of parts as hereinafter described andclaimed.

In the accompanying drawings-Figure 1 is a side view showing part of asewing machine with my invention applied thereto. Fig. 2 is a side view,partly in section, of my improved thread guide. Fig. 3 is a top planview of the same. Fig. i is a perspective view of the retaining cap, andFig. 5 is a side view of the threading device.

1 represents a sewing machine with my invention arranged in proximitythereto, and adapted to deliver a thread to said machine.

The thread stand consists of a heavy base 2, preferably of metal,provided with an enlargement 3, which is perforated for the reception ofan upright rod 4, fastened in said projection by any suitable means,such as a screw 5. ()n the rod 4 is mounted a sliding sleeve 6, whichmay be fixed in any desired position upon said rod by means of the setscrew 7. Connected to the sleeve 6 is an arm 8, forked at its upper end.

9 represents another sleeve, mounted on the rod 4, on which rod it maybe adjusted and fixed by means of the screw 10. The sleeve 9 has madeintegral with it an arm 10, the outer end of which terminates in a ring11, in which is mounted a ring 12 of leather, rubber, or similarmaterial.

13 represents a pin projecting upwardly from the center of the stand orbase 2, on which the spool of thread 14- is carried.

15 represents a weighty cap, provided with a central aperture 16, andhaving a downwardly projecting edge 17 adapted to rest on the top of thespool. This cap is adapted to be used especially if the upper end of thespool is nicked or broken, and it may be omitted, if desired. The screws7 and 10 engage a groove 27, preventing the sleeves 6 and 9 fromrotating.

18 represents a long tube, which is supported on the outer end of thearm 8 and projects downwardly through the ring 11, the lower end beingflared as shown at 19. On the upper end of the tube 18 are mounted tworings 20 and 21, one adapted to fit over and the other under the forkedend of the arm 8. These rings are secured to said tube in any suitableway. After the upper end of the tube has been supported in the forkedend of the arm 8, a pin 23 is placed through the ends of said arm tokeep the tube from being disengaged therefrom. The construction shownpermits a substantially universal movement of the tube 18 on thesupporting arm 8, and it is obvious that various other devices could beused for the same purpose.

The threading device consists of a long wire 24-, with a book 25 at itslower end and a loop 26 at its upper end. This wire is, of course.slightly longer than the tube 18, and the threading operation isobvious.

The operation is as follows z-Tlie thread being passed through the tube18 by means of the threading device, is led off to a sewing machine. orwherever it is to be used. As the thread is pulled through the tube 18,the latter, under ordinary conditions, swings around with its lower endresting against the top of the spool or against the cap 15, if thelatter is usedas indicated in dotted lines in Fig. 2. The tube 18, aswill be seen, substantially generates a cone in its movement. Underordinary conditions, when the thread is being pulled through the tube 18slowly. the lower part of the tube 18 rests against the top of the spoolor against the cap 15, and enough friction is generated to prevent thetube 18 from moving too rapidly. If a sudden pull is given to thethread. the lower part of the tube 18 flies outwardly by centrifugalforce. and rests against the leather ring 12, which furnishes frictionenough to prevent the too rapid rotation of the tube, the spool ofthread remaining stationary. By long continued trials, 1 haveestablished the fact that no matter how quick or sudden the pull, thethread never overruns to any appreciable extent, while in all of thethread stands or supports known to me, a sudden strong pull will causethe thread to unwind in far too great a quantity from the spool,inevitably resulting in tangling and breaking of the thread.

Having thus described my invention, I claim 1. In a thread stand, thecombination of a movable thread guide adapted to move around one end ofa spool of thread, said thread guide being freely suspended, andfrictional means acting against the centrifugal force of the threadguide for retarding the movement of said guide if a sudden pull is givento the thread, substantially as described.

2. in a thread stand, the combination of a support for the spool ofthread, a freely movable thread guide, and a friction ring actingagainst the centrifugal force of the thread guide for preventing theoverrunning of the movement of the thread guide if a sudden pull isgiven to the thread, substantially as described.

3. In a thread stand, the combination of a support for a spool ofthread, a freely movable thread guide, through which the thread fromsaid spool passes, one end of said thread guide being adapted to swingaround the end of the spool of thread, and means surrounding said threadguide for frictionally retarding by centrifugal force the same fromoverrunning in its movement, substantially as described.

4. In a thread stand, the combination of a support for a spool ofthread, a freely movable thread guide arranged with one end adapted toswing around said spool of thread, and a fixed annular member engagingwith said guide and adapted to pre vent the same from overrunning,substantially as described.

5. In a thread stand, the combination of a base provided with means forsupporting a spool of thread, a hollow thread guide, a rod attached tosaid base, an arm attached to said rod and freely supporting the upperend of said thread guide, the lower end of said guide being free to movein a circle around the spool of thread, and a ring supported by saidrod, against the interior of which said thread guide is adapted to bear,by centrifugal force, if a sudden pull is given to the thread,substantially as described.

6. In a thread stand, the combination of a base having thereon means forsupporting a spool of thread, a rod extending upwardly from said base,an arm movably supported on said rod and provided with a forked end, ahollow thread guide supported by said arm at its upper end, and havingits lower end free to move in a circle, and a ring within which saidthread guide moves, substantially as described.

7. In a thread stand, the combination of a base having means thereon forsupporting a spool of thread, a spool of thread mounted thereon, ahollow thread guide, a rod projecting upwardly from said base, an armadjustably secured to said rod, said arm having a forked end and freelysupporting the upper end of said thread guide, and a ring within whichsaid thread guide is adapted to swing, said ring being movably supportedon said rod and having on its interior suitable friction-producingmaterial, substantially as described.

8. In a thread stand, the combination of a base provided with anupwardly extending central pin, a spool of thread mounted on said base,a cap adapted to be placed on said spool of thread, a rod attached tosaid base and extending upwardly, an arm adjustably supported on saidrod and having a forked end, a hollow thread guide freely supported bysaid arm, and a ring provided with leather on its interior, said ringbeing adjustably supported on said rod, substantially as described.

In testimony whereof, I aflix my signature, in presence of twowitnesses.

JOHN W. DARLEY, JR.

\Vitnesses:

J. S. GIUSTA, GEO. B. PITTS.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents,

Washington, D. C.

